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authorDr. David Alan Gilbert <dgilbert@redhat.com>2017-10-20 10:05:50 +0100
committerJuan Quintela <quintela@redhat.com>2017-10-23 18:03:27 +0200
commit93fbd0314ec060ffaf90169a06d5737fa97ffb25 (patch)
treea7e5569ec2d4cee4ba3347db9fbf86d7e6e245b4 /qapi/migration.json
parent80f8dfde97e89739d7b9edcf0afceaed3f7f2aad (diff)
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migration: Add 'pause-before-switchover' capability
When 'pause-before-switchover' is enabled, the outgoing migration will pause before invalidating the block devices and serializing the device state. At this point the management layer gets the chance to clean up any device jobs or other device users before the migration completes. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'qapi/migration.json')
-rw-r--r--qapi/migration.json5
1 files changed, 4 insertions, 1 deletions
diff --git a/qapi/migration.json b/qapi/migration.json
index f8b365e..4960231 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -341,6 +341,9 @@
# @return-path: If enabled, migration will use the return path even
# for precopy. (since 2.10)
#
+# @pause-before-switchover: Pause outgoing migration before serialising device
+# state and before disabling block IO (since 2.11)
+#
# @x-multifd: Use more than one fd for migration (since 2.11)
#
# Since: 1.2
@@ -348,7 +351,7 @@
{ 'enum': 'MigrationCapability',
'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram',
- 'block', 'return-path', 'x-multifd' ] }
+ 'block', 'return-path', 'pause-before-switchover', 'x-multifd' ] }
##
# @MigrationCapabilityStatus: